HSTOOL for Horizon Scanning of Scientific Literature

In this report we develop a methodology and a system for horizon scanning of scientific literature to discover scientific trends. Literature within a broadly defined field is automatically clustered and ranked based on topic and scientific impact, respectively. A method for determining the optimal number of clusters for the established Gibbs sampling Dirichlet multinomial mixture model (GSDMM) algorithm is proposed along with a method for deriving descriptive and distinctive words for the discovered clusters. Furthermore, we propose a ranking methodology based on citation statistics to identify significant contributions within the discovered subject areas.